Pretty Little Liars season 7 is all set to bring more pain and trauma for Aria, Hanna, Emily, Alison and Spencer. While Alison is dealing with a completely different issue, other liars will be racing against time to save Hanna, who is held hostage by Uber A.

Warning: Spoilers ahead, proceed at your own risk

It is unclear whether she would survive the vicious kidnapper, but one thing is certain that her friends will leave no stone unturned to save here – including killing someone if need be. According to a new promo released by Freeform, during their mission to #SaveHanna, the liars along with Mona, Toby, Caleb and Ezra will spot Mrs Jessica DiLaurentis (Alison's dead mother) walking towards the Rosewood Police station.

Fans know that she is actually Mary Drake, Mrs D's twin, but the gang is unaware of the fact. "Alison's not the only one seeing ghosts tonight. Unless we're under a Bodysnatchers invasion, that's a real person," Emily tells the gang.

In the PLL season 6 finale, Alison got herself admitted at a psychiatric hospital as she was having visions of her dead mother. But later it was revealed that the entire ghost drama was a plot by Mary (the biological mother of CeCe Drake) and Elliot Rollins, CeCe's lover who tricked Ali to marry him to grab her wealth.

The girls and their boy gang think that Mary is behind Hanna's kidnapping, but going by past revelations, chances are high that show creator Marlene King will serve the suspect's identity on a platter to fans.

Alison is still trapped in the mental asylum and Elliot is making sure that she endures painful psychological trauma. Concerned about Ali's situation Emily decides to meet Dr Rollins but to her amusement, he informed her that Ali is "on a psychotic break" and is "totally consumed with shame".

It remains to be seen, how the liars will save their friends Hanna and Alison from the deadly clutches of Uber A and Mary Drake. PLL season 7 will premiere on Tuesday (21 June) on Freeform.